''Orthaulax'' is an
extinct
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
sea snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...
s in the family
Strombidae
Strombidae, common name, commonly known as the true conchs, is a Taxonomy (biology), taxonomic family (biology), family of medium-sized to very large sea snails in the superfamily (zoology), superfamily Stromboidea, and the Epifamily Neostromboid ...
.
Description
Orthaulax have spires and spiral lines, which vary based on species and age of the specimen. Initially, Orthaulax was thought to not show signs of variation in color, but it has later been discovered that colored patterns can be seen on non-eroded specimens of Orthaulax when they are shined with an ultraviolet light.
Geology
Its fossils are most often found in areas with high
lime
Lime most commonly refers to:
* Lime (fruit), a green citrus fruit
* Lime (material), inorganic materials containing calcium, usually calcium oxide or calcium hydroxide
* Lime (color), a color between yellow and green
Lime may also refer to:
Bo ...
content. Examples of Orthaulax have been dated to the
Oligocene
The Oligocene ( ) is a geologic epoch (geology), epoch of the Paleogene Geologic time scale, Period that extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that defin ...
and
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...
.
Species
*''
O. aguadillensis''
( Maury, 1920)
*''
O. altilis''
(Pilsbry
Henry Augustus Pilsbry (7 December 1862 – 26 October 1957) was an American biologist, malacologist and carcinologist, among other areas of study. He was a dominant presence in many fields of invertebrate taxonomy for the better part of a cent ...
, 1922)
*''
O. bermudezi''
(Clench and Aguayo, 1939)
*''
O. brasiliensis''
( Maury, 1925)
*''
O. caepa''
(Cooke
Cooke is a surname of English and Irish origin derived from the occupation of cook and anglicisation of various Gaelic names. Variants include Cook and McCook.
Irish surname origin
Cooke (rather than Cook) is the usual spelling of the surnam ...
, 1921)
*''
O. conoides''
( Woodring, 1923)
*''
O. dainellii''
( Savazzi, 1989)
*''
O. gabbi''
( Dall, 1890)
*''
O. hernandoensis''
(Mansfield
Mansfield is a market town and the administrative centre of the Mansfield District in Nottinghamshire, England. It is the largest town in the wider Mansfield Urban Area and the second largest settlement in Nottinghamshire (following the city ...
, 1937)
*''
O. inornatus''
( Gabb, 1872)
*''
O. japonicus''
(Nagao, 1924)
*''
O. portoricoensis''
(Hubbard, 1921)
*''
O. pugnax''
(Heilprin
Heilprin () is a Jewish surname with many variants.
Origins
Some people with the name derive it from the town of Heilbronn, Germany. "Heilbronn" means "healing well".
Besides the numerous Heilbrons, Heilbronners, Heilpruns, and Heilbruns who are ...
, 1887)
*''
O. seaforthensis''
( Trechmann, 1941)
References
Strombidae
{{Strombidae-stub